Patent GB-427683-A (GB)
Title: Means for manipulating duplicate continuous record sheets in a typewriter
IPC: B41J17/00
Filed: 1934-05-16
Abstract: 427,683. Typewriters. COPELAND, R. J., 85, Richmond Street, Toronto, Canada. May 16, 1934, No. 14787. [Class 100 (iv)] Carbon-sheet arrangements; web and sheet feeding and guiding arrangements.-In a duplicating-device for typewriters of the type in which continuous record-sheets with an interleaved and relatively displaceable set of carbon sheets are guided in their passage to the platen by means of a guide-member operating in unison with the longitudinal travel of the carriage, there is provided a light rigid frame having spaced uprights extending upwardly and disposed mainly above the upper level of the typewriter, which slidably supports a sheet-guiding structure which extends angularly upward and rearward of the carriage with which it is in operative engagement, the record-sheets being directed downwardly over the guiding structure to the platen and being also supported by auxiliary means, which are carried by an upper transverse guideway supported at the upper ends of the uprights forming the frame and which are also adapted to follow the transverse movements of the carriage and guidemember. In the apparatus shown in Fig. 1, the record-sheets are fed in web form from a pack 14 over a plate 16 forming the guiding- structure to the platen, the lower end of the plate extending between and engaging the end bars 19 of the carriage, so that the movement of the latter carries the plate 16 along, rollers 17 and a grooved block attached to the plate engaging respectively guide-bars 10, 11 in the stationary rigid frame 7 and serving as guiding-means. The webs are guided by lugs 26 on the plate 16 and lugs 25 provided on a sliding plate 21 which is adapted to carry the carbon-sheet holder. The frame 7 is detachably and adjustably supported on brackets 1 mounted on each side of the typewriter, and the upper ends of the uprights are joined by a bar 8 on which are slidably mounted arms 28 forming an additional support for the plate 16. The web pack 14 is contained in a container 13 maintained on the frame 7 by suitable stays, and the webs which are held down on the plate 16 by a clip 41 pass round the platen, and the filing-apertures in the free ends are secured to projections on a clip 36 which is attached to the end of a cord 35 and which may constitute the auxiliary support means for the recordsheets. The cord passes over rollers 30, 32, carried by a bar 29 connected between the arms 28, and the free end of the cord carries a tensioning weight 39. A clip 40 limits the upward movement of the record-strips. In a modification, the record-sheets are in roll form and are mounted in supports 53, Fig. 11, between the frame 7<1>, the webs being led over a guide-plate 65 forming the auxiliary support means for the webs and between guides 69 on a member 68 to which a carbon sheet holder is attached. A further guide-bar 72 is provided which is carried by a plate 60 supported by a roller on a bar 62 and is adapted to move with the roller carriage and is supported by slidable arms 63 on the top bar 64 of the frame 7<1>. A plate 54 mounted between cross-rods 55, 56 hingedly supports a holder 57, provided with sides and bottom flanges and adapted to support a separate sheet to form the original or top copy of the typed sheets. The plate 57 is held in an inclined position by a rod 59 sliding in a slot in the plate 54 which serves to limit the movement of the plate 57, when inserting the separate sheet. A multiple carbon-sheet holder is used such as described in Specification 419,793, [Group XV], comprising a backing- sheet to which are attached several carbon sheets, between which the record sheets are threaded. Slots are cut in the backing-sheet to register with studs 45, Fig. 1, provided on the plate 21 which is slidably mounted on the plate 16, the extent of the movement being limited by guide-pins on the plate 21 which move in a slot in the plate 16 which is provided with an adjustable stop-member. A cord 49 passes over a roller 51 and has one end secured to the plate 21 while the other end carries a handle 52, adapted to be pulled by the operator for retracting the carbon sheets when a complete form has been typed. At this point, the carbon-holder will have reached the limit of its travel relatively to the plate 16, and the operator pulls the record-sheets through the typewriter past the carbon sheets by means of the cord 35. The record and carbon sheets are then pulled back together by the cord 49, leaving a completed form projecting above a serving member 53. In the modification of Fig. 11, the carbon-sheet holder is of similar construction and is slidable relatively to the webs, being retracted by a cord 73 attached to the plate 68. Web-cutting arrangements.-The web-severing member 53 comprises a strip which is detachably held in place between the platen and the forward part of the carriage by spring clips mounted at the ends of the strip for clipping on to the ends of the platen.